HomeBLOGWhy do children's eyes change color?

Why do children’s eyes change color?

A newborn baby’s eyes may be blue, Children’s eye color light gray or brown, but will they be permanent? For this reason, the color of a child’s eyes sometimes changes until the age of 3 years.

Changing eye color is a normal part of a child’s development, and it may happen at any time from 9 months to 3 years old, as a child’s eye color “swings” between several colors of the same degree (or in rare cases two colors called heterochromia, with more of the melanin in their eyes).

However, a child’s eye color holds some surprises, as he may continue to experience a number of changes due to pigmentation of his iris even after his first birthday.

You may notice slight changes in eye color even at the age of 3 years (green eyes slowly turn brown, for example, or hazel eyes may turn brown as well), according to Healthline.

Melanin and the color of children’s eyes

When you notice the color of someone’s eye, you’re looking at a part of the eye called the iris, which is the ring around the pupil that’s filled with melanin. Melanin is a pigment that gives color to hair, eyes, and skin. Depending on the amount of melanin in the iris, it can give colors ranging from gray, green, hazel, blue, brown or even red, and the eye color is unique to each person.

Eye color is not just cosmetic like most of your vital traits, eye color has a purpose.

Thousands of years ago, early humans had one thing in common, they all had brown eyes, which are just like the melanin in the skin to protect against the sun’s harmful ultraviolet rays, and melanin in the eyes also protects against ultraviolet rays and long-term damage such as cataracts or other types of UV rays. Rare eye cancer.

When humans migrated and settled in climates less exposed to harsh sunlight, they needed less melanin, and human genes adapted to it.

Although the most common eye color is still brown worldwide, this explains why people of European ancestry tend to have lighter hair, skin, and eye colours.

Interestingly, all melanin is brown, and the more melanin in the eye, the darker it appears. In eyes with less melanin – such as blue or green – the eyes absorb less light and it spreads around the eye in a phenomenon called the tint effect; Which is similar to why the sky appears blue.

The Tyndale effect, also called Tyndall’s phenomenon, describes the scattering of a beam of light by a medium containing small suspended particles – for example, smoke or dust in a room, and because blue light has a wavelength, it appears stronger than long-wave red, according to Encyclopedia Britannica. .

Childreen’s eye color
But genetics also plays a role

The inheritance of eye color can be direct, as when two parents with a dominant brown-eyed gene produce a brown-eyed child. However, a 2016 study showed that 16 genes are involved in determining a person’s eye color, according to the scientific journal Nature.

Parents with a recessive blue eye gene can produce a child with brown eyes due to altered genes or mutations. Gene mutations occur when genes “mistake” or stop working due to environmental conditions or disease.

So the color of the eyes simply tells a unique story thousands of years old that began with the ancestors of humans and continues today.

Since there is still so much not understood about the interaction of genes and their.

role in determining eye color, it is difficult to make hard and fast predictions about a child’s eternal eye color.

But if a baby’s eyes were blue or light gray at birth.

Children’s eye color there are some more likely possibilities of what color they will land on:

If both parents had brown eyes, but one of them had a blue-eyed dad.

there is a small chance that your little one’s eyes will become permanently blue.

If one parent has blue eyes and the other is brown, your child has a 50-50 chance of developing permanent blue eyes.

Ife both parents have blue eyes, it is very likely that the child’s eyes Children’s eye color will become permanently blue.



Please enter your comment!
Please enter your name here

Most Popular

Recent Comments